Nowadays, many existing buildings and bridges fulfil no longer the requirement of shear resistance acc. to the Eurocode, because they are structurally deficient to some extent, or the load demands have increased beyond the structure’s original load carrying capacity. That is why it is necessary to strengthen the constructions sustainably. Carbon reinforced concrete (CRC) is one feasible option to improve the shear load capacity. Thereby grids made of carbon fibres with a high tensile strength are placed in a thin shotcrete layer to carry the additional shear force. As a part of the current study, a T-beam geometry with a practical orientation was strengthened with two different carbon grids representing the current state of the art in reinforcing textile technology and afterwards tested to demonstrate the increase of the shear load-bearing capacity due to strengthening with CRC. Thereby, the configuration of the textiles in the strengthening layers varied. It was possible to increase the load up to 140% compared with an unstrengthened T-beam.